Compared first:last and siblings(".selector").
Refresh/Reload
li:first and li:last
   
#div2 li:first & li:last
 
$('#div2 li').siblings(".sem1")
 
Div1 : Flush All: class enforced
Art
CSS:Effect
Chemistry
First Anchor
2nd Anchor
last Anchor
Debate
Div2 :Change Font :ID enforced
Art
CSS:Effect
Chemistry
First Anchor
2nd Anchor
last Anchor
Debate